diff --git a/scripts/Common/Config/Chromium/install-ytmusic-dl.sh b/scripts/Common/Config/Chromium/install-ytmusic-dl.sh
index 6bef6fb7..ab3c92ed 100755
--- a/scripts/Common/Config/Chromium/install-ytmusic-dl.sh
+++ b/scripts/Common/Config/Chromium/install-ytmusic-dl.sh
@@ -17,7 +17,7 @@ unzip "$archiveName" -d "$extensionDir";
 rm "$archiveName";
 
 # Tamper manifest file
-manifest="$(echo "$manifest" | jq ".background.persistent = false")";
+manifest="$(cat "$manifestFile" | jq ".background.persistent = false")";
 echo "$manifest" > "$manifestFile";
 
 EXTENSION_NAME="youtube-music-dl" \